Surname
* Armindo Sieb (born 2003), German professional football player * John L. Sieb (1864–1941), American politician and barber * Wally Sieb (1899–1974), American professional football playerGiven name
* Sieb Dijkstra (born 1966), Dutch football coach and former professional footballerSee also
* Theodor Siebs (1862–1941), German linguist ** Siebs's law, a Proto-Indo-European (PIE) phonological rule {{Given name, type=both